[PATCH] D100037: [clang][UBSan] Passing underaligned pointer as a function argument is undefined behaviour

[Nick Desaulniers via Phabricator via cfe-commits]

nickdesaulniers added a comment.

> Let's first give users tools to weed out the cases where the pointer
> passed into function's argument is underaligned.

Isn't there already `-Walign-mismatch` in clang?  We definitely have 1 unresolved case of that affecting the Linux kernel ATM: https://github.com/ClangBuiltLinux/linux/issues/1328



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Comment at: clang/docs/ReleaseNotes.rst:52
+  however, there's interest in doing so now.
+  A new ``-fstrict-pointer-alignment`` flag was introduces (default on), which
+  will guard these new optimizations in the future, and allow disabling them.
----------------
s/was//


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https://reviews.llvm.org/D100037